Fix: Spline Parameter node produces NaN when curve is a single point

Issue found in file from T101256.
2022-09-29 13:32:03 +02:00
parent ffccdf069b
commit b70b02ee42
1 changed files with 4 additions and 0 deletions
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
@@ -126,6 +126,10 @@ static VArray<float> construct_curve_parameter_varray(const bke::CurvesGeometry
            value *= factor;
          }
        }
+        else if (curve_lengths.size() == 1) {
+          /* The curve is a single point. */
+          curve_lengths[0] = 0.0f;
+        }
        else {
          /* It is arbitrary what to do in those rare cases when all the points are
           * in the same position. In this case we are just arbitrarily giving a valid